Vania



(No Model.)

J. SGHROBPFEL an F. L. VQBGTLY. STOVE.

' PatentedDec. 6, 1892.

Ke Y .9.7; f l

5 E'i I l 2 v yUNITED i STATES PATENT EErCE.

JOHN SCHROEFFEL AND FRANK L. VOEGTLY, OF ALLEGHENY, PENNSYL- VANIA; SAID SCHROEFFEL ASSIGNOR TO SAID VOEGTLY.

STOVE.

SPECIFICATION forming part of Letters Patent No. 487,541, dated December 6, 1892. Application led July 5, 1892. Serial No. 439.003. (No model.)

To all whom, it may concern.-

e it known that we, JOHN SCHROEEEEL and FRANK L. VOEGTLY, residents of Allegheny, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvementin Stoves; and we do hereby declare the following to be a full, clear, and exact description thereof.

Our invention relates to stoves, and more particularly to that class of open-front stoves in which vertically-adj ustable blowers are employed to increase or diminish the draft, as may be desired.

Our invention comprises, generally stated, vertical rods or bars removably secured on each side of the grate-openings, a series of projections formed on said rods or bars at suitable intervals apart, a front or blower with lugs formed thereon, adapted to engage with said projections, and wings or flanges formed on the ends of said front or blower, said wings or flanges being adapted to engage with the inner faces of said rods or bars, whereby said rods or bars act as guides for said front or blowerand retain it in a vertical position. Y

Our invention further consists in certain improvements and combinations of parts, all of which will be fully hereinafter set forth and claimed.

To enable others lskilled in the art to make and use -our invention, we will describe the same more fully, referring to the accompanying drawings, in which- Figure l is a front view of an open-front stove with our invention applied thereto, showing the blower in its raised position. Fig. 2 is a like View showing the blower lowered. Fig. 3 is a side view. Fig. 4 is a crosssection on the line44, Fig. 3. Fig. 5 is a perspective view of part of the blower.

Like letters indicate like parts in each.

The stove a may be of any suitable construction, having the front plate d', with the opening b formed therein, and the grate c, supported in the customarymanner. On each side of the opening b are the vertical rods or bars d, said rods being secured at their upper ends to the front plate a. In order to provide for 5o a slight space between the inner faces of the rods d and the front plate d to serve as a guide for the blower, as will more fully appear, small lugs e are formed on said front plate d', to which the upper ends of the Said rods d are secured, or the upper ends of the said rods d may be set back to produce the saine effect. The lower ends of the vertical rods d may rest in suitable seats formed for them in the base-plate a2 of the stove. These vertical rods d may be formed of cast-iron, and have formed thereon the teeth or projectionsf at regular intervals, said teeth extending to such a height thereon to correspond to the size ot' the opening` b. The teeth or projectionsfare slightlyinclined,as atf',to permit of the lugs on the blower moving readily over them when the blower is raised or lowered, as willniorefullyhereinafterappcar. Theblower g may be ofany suitable form and is provided with a suitable handle h. The said blower is further provided with the lugs 1', adapted to engage with the teethor projectionsfon the vertical rods d, by means of which said blower may be supported at any desired height. In order to retain the blower g in a vertical position and guide it properly when it is ad- `iusted vertically,wings or flanges k are formed on the ends of said blower, said wings or anges preferably extending from about the top edge of said blower about half-way down along the ends thereof. The wings or flanges lc are thicker at the upper ends than at the lower ends thereof, as shown in Fig. 5, the diminution in thickness from the top to the bottom being gradual. By this construction the wings or flanges k have a certain amount of play within the space formed to receive them between the inner faces of the vertical rods d in order to allow for the passage of the lugs t' over the teeth or projectionsfon the said vertical rods d, as will be more fully hereinafter set forth.

The operation of our improved verticallyadjustable blower is as follows: If the blower g is in its raised position, as shown in Fig. l, and it is desired to lower it, the operator by grasping the handle h draws out the lower portion of the blower until the lugs 1l thereon are disengaged from the teeth or projections upon which they have been resting. The abil- IOO ity to draw out the lower end of the blower to disengage the lugs e' from the teeth or projectionsf is due to the fact that the wings or ianges k do not extend down along the ends of the blower g for the entire width of said blower, as well as to the fact that said wings or flanges taper along their edges from the top to the bottom thereof. By this form of construction the lugs t' may be readily disengaged from the teeth f and pass without dificulty over said teeth. Then the blower` is in its xed position, the thickness of the npper ends of the wings or iianges 7c prevents, practically, any lateral movement on the part of said blower and holds said blower snugly in place; but when it is desired to raise or lower said blower the wings or flanges 7c move freely up and down within the guides formed for them by the vertical rods d.

It is apparent that the above form of construction may be reversed and yet operate in the same effective manner. The teeth or projectionsf may be formed on the upper half of the vertical rods d. Thelugsz' on the blower may be formed on the upper corners thereof and the wings or flanges made to extend from the lower edge of the blower about half-way up thereon, as before. In operating the blower with the several parts thus reversed, the op erator draws out the upper portion of the blower to disengage the same from the teeth on the vertical rods, when the blower may be raised or lowered, as before.

The construction which we have herein described may be changed to suit different constructions of open-front stoves, and we do not confine ourselves to its use in the exact construction shown.

By the employment of the vertical rods notin direct contact with the body of the stove they are not subjected to such high heat as the parts composing the stove-body and are not so liable to warp. The vertical rods may be replaced by new ones when worn out, whereas in cases where the teeth which support the blower are formed on parts of the stove-body and such parts become warped and render the device inoperative the stove must be taken apart and such parts replaced by new ones.

The parts of our device are all exposed, so that if for any reason it becomes inoperative the difficulty is at once apparent.

What we claim as our invention, and desire to secure by Letters Patent, is

l. In combination with an openfrontstove, removable rods arranged at each side of the grate-opening and having teeth or projections thereon, a front or blower adapted to engage with said teeth or projections, and Wings on said front or blower, said wings engaging with the inner faces of said rods, substantially as and for the purposes set forth.

2. ln combination with an open-front stove, removable rods arranged at each side of the grate-opening and having teeth or projections thereon, a front or blower engaging with said teeth or projections, and wings on said front or blower, said wings having a greater thickness at one end than at the other and adapted to engage with the inner faces of said rods, substantially as and for the purposes set forth.

3. In combination withan open-front stove, removable rods arranged at each side of the grate-opening and having teeth or projections on the front faces thereof, a front or blower adapted to engage with said teeth or projections, and wings on said front or blower, sa-id wings engaging with the inner faces of said rods, substantially as and for the purposes set forth.

In testimony whereof we, the said JOHN SCHROEFFEL and FRANK L. VoEGTLY have hereunto set our hands.

JOHN SCI-IROEFFEL. FRANK L. VOEGTLY.

Witnesses:

RoBT. D. ToT'rEN, J. N. COOKE. 

